--- xfdesktop-4.4.0/src/xfce-backdrop.c	2007-01-20 16:18:37.000000000 -0500
+++ xfdesktop-4.4.0/src/xfce-backdrop.c.new	2007-02-22 19:52:16.000000000 -0500
@@ -575,7 +575,11 @@
     } else
         istyle = backdrop->priv->image_style;
     
-    if(backdrop->priv->bpp < 24)
+    if(istyle == XFCE_BACKDROP_IMAGE_CENTERED ||
+         istyle == XFCE_BACKDROP_IMAGE_TILED ||
+         (w == iw && h == ih))
+        interp = GDK_INTERP_NEAREST;
+    else if(backdrop->priv->bpp < 24)
         interp = GDK_INTERP_HYPER;
     else
         interp = GDK_INTERP_BILINEAR;